Step 1: Let's recall that the angles given are alternate exterior angles and thus congruent which means the two angles have the same measure.
Step 2: Upon saying that, we are ready to wirite our equation to solve for x, as follows:
8x + 4 = 9x - 11
Like terms
8x - 9x = -11 - 4
-x = - 15
Multiplying by -1 at both sides:
x = 15
Step 3: Now we are ready to find that both angles are congruent and equal:
8 * 15 + 4 = 9 * 15 - 11
120 + 4 = 135 - 11
? = ?
I think you are more than ready to finish the calculation and confirm that m || n, Photo Softee!
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